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authorLinus Torvalds <torvalds@linux-foundation.org>2010-07-04 23:21:39 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2010-07-04 23:21:39 -0400
commit71665963af194f50402a2cb1339828caff4ee9ee (patch)
treef5e39b7cd098419a7bfeee911e75ec19bb0abd63 /arch/arm/mm/dma-mapping.c
parent3f7d7b4bded5bd2cc9934a2ed9a7ce68feb636b0 (diff)
parent446a5a8b1eb91a6990e5c8fe29f14e7a95b69132 (diff)
Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm: ARM: 6205/1: perf: ensure counter delta is treated as unsigned ARM: 6202/1: Do not ARM_DMA_MEM_BUFFERABLE on RealView boards with L210/L220 ARM: 6201/1: RealView: Do not use outer_sync() on ARM11MPCore boards with L220 ARM: 6195/1: OMAP3: pmu: make CPU_HAS_PMU dependent on OMAP3_EMU ARM: 6194/1: change definition of cpu_relax() for ARM11MPCore ARM: 6193/1: RealView: Align the machine_desc.phys_io to 1MB section ARM: 6192/1: VExpress: Align the machine_desc.phys_io to 1MB section ARM: 6188/1: Add a config option for the ARM11MPCore DMA cache maintenance workaround ARM: 6187/1: The v6_dma_inv_range() function must preserve data on SMP ARM: 6186/1: Avoid the CONSISTENT_DMA_SIZE warning on noMMU builds ARM: mx3: mx31lilly: fix build error for !CONFIG_USB_ULPI [ARM] mmp: fix build failure due to IRQ_PMU depends on ARCH_PXA [ARM] pxa/mioa701: fix camera regression [ARM] pxa/z2: fix flash layout to final version [ARM] pxa/z2: fix missing include in battery driver [ARM] pxa: fix incorrect gpio type in udc_pxa2xx.h
Diffstat (limited to 'arch/arm/mm/dma-mapping.c')
-rw-r--r--arch/arm/mm/dma-mapping.c18
1 files changed, 9 insertions, 9 deletions
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 13fa536d82e6..9e7742f0a102 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -24,15 +24,6 @@
24#include <asm/tlbflush.h> 24#include <asm/tlbflush.h>
25#include <asm/sizes.h> 25#include <asm/sizes.h>
26 26
27/* Sanity check size */
28#if (CONSISTENT_DMA_SIZE % SZ_2M)
29#error "CONSISTENT_DMA_SIZE must be multiple of 2MiB"
30#endif
31
32#define CONSISTENT_OFFSET(x) (((unsigned long)(x) - CONSISTENT_BASE) >> PAGE_SHIFT)
33#define CONSISTENT_PTE_INDEX(x) (((unsigned long)(x) - CONSISTENT_BASE) >> PGDIR_SHIFT)
34#define NUM_CONSISTENT_PTES (CONSISTENT_DMA_SIZE >> PGDIR_SHIFT)
35
36static u64 get_coherent_dma_mask(struct device *dev) 27static u64 get_coherent_dma_mask(struct device *dev)
37{ 28{
38 u64 mask = ISA_DMA_THRESHOLD; 29 u64 mask = ISA_DMA_THRESHOLD;
@@ -123,6 +114,15 @@ static void __dma_free_buffer(struct page *page, size_t size)
123} 114}
124 115
125#ifdef CONFIG_MMU 116#ifdef CONFIG_MMU
117/* Sanity check size */
118#if (CONSISTENT_DMA_SIZE % SZ_2M)
119#error "CONSISTENT_DMA_SIZE must be multiple of 2MiB"
120#endif
121
122#define CONSISTENT_OFFSET(x) (((unsigned long)(x) - CONSISTENT_BASE) >> PAGE_SHIFT)
123#define CONSISTENT_PTE_INDEX(x) (((unsigned long)(x) - CONSISTENT_BASE) >> PGDIR_SHIFT)
124#define NUM_CONSISTENT_PTES (CONSISTENT_DMA_SIZE >> PGDIR_SHIFT)
125
126/* 126/*
127 * These are the page tables (2MB each) covering uncached, DMA consistent allocations 127 * These are the page tables (2MB each) covering uncached, DMA consistent allocations
128 */ 128 */